Effects of Increased Cerebrospinal Fluid Pressure on CM Response Cerebrospinal fluid pressure and consequently perilymphatic fluid pressure was increased 5, 10, and 15 cm Hg above normal in 13 cats. With increasing pressure the CM pseudo-threshold showed a progressive impairment. This decrease in CM response was greatest at low frequencies. CM input-output functions indicated that with increasing pressure there ... Research Article
Research Article  |   March 01, 1968
Effects of Increased Cerebrospinal Fluid Pressure on CM Response
 
Author Affiliations & Notes
  • R. Michael Feldman
    The Jewish Hospital of St. Louis, St. Louis, Missouri
Article Information
Hearing & Speech Perception / Research Articles
Research Article   |   March 01, 1968
Effects of Increased Cerebrospinal Fluid Pressure on CM Response
Journal of Speech, Language, and Hearing Research, March 1968, Vol. 11, 18-32. doi:10.1044/jshr.1101.18
History: Received January 1, 1967
 
Journal of Speech, Language, and Hearing Research, March 1968, Vol. 11, 18-32. doi:10.1044/jshr.1101.18
History: Received January 1, 1967

Cerebrospinal fluid pressure and consequently perilymphatic fluid pressure was increased 5, 10, and 15 cm Hg above normal in 13 cats. With increasing pressure the CM pseudo-threshold showed a progressive impairment. This decrease in CM response was greatest at low frequencies. CM input-output functions indicated that with increasing pressure there is a progressive decrease in the linear range of the CM reponse and also a possible decrease in maximum amplitude. Results are discussed in terms of possible mechanical alterations within the cochlea which might produce the observed changes in CM response.

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